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A brain abscess is a collection of pus within the substance of the brain and is caused by:
- A. Direct invasion of the brain
- B. Spread of infection by other organs
- C. Spread infection from nearby sites
- D. All of the above mechanisms
Correct Answer: D
Rationale: The correct answer is D because a brain abscess can be caused by direct invasion of the brain, spread of infection by other organs, and spread of infection from nearby sites. Direct invasion occurs when bacteria enter the brain tissue directly, such as through trauma or surgery. Infections from other organs, like the lungs or heart, can spread through the bloodstream to the brain. Infections from nearby sites, such as the ears or sinuses, can also spread to the brain. Therefore, all of these mechanisms can lead to the formation of a brain abscess. Choices A, B, and C individually do not cover all the possible causes of a brain abscess, making D the correct choice.
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A client is receiving a blood transfusion. If this client experiences an acute hemolytic reaction, which nursing intervention is the most important?
- A. Immediately stop the transfusion, infuse dextrose 5% in water (D5W), and call the physician.
- B. Slow the transfusion and monitor the client closely.
- C. Stop the transfusion, notify the blood bank, and administer antihistamines
- D. Immediately stop the transfusion, infuse normal saline solution, notify the blood bank
Correct Answer: D
Rationale: The correct answer is D: Immediately stop the transfusion, infuse normal saline solution, notify the blood bank.
Rationale:
1. Stop the transfusion immediately to prevent further complications from the hemolytic reaction.
2. Infuse normal saline solution to maintain adequate hydration and support kidney function.
3. Notify the blood bank to report the adverse reaction and to return the blood products for further investigation and testing.
Summary of other choices:
A: Incorrect because infusing dextrose 5% in water (D5W) is not indicated for treating a hemolytic reaction. Calling the physician is important, but stopping the transfusion and notifying the blood bank are more critical.
B: Incorrect because slowing the transfusion may not be sufficient to manage the acute hemolytic reaction effectively.
C: Incorrect because administering antihistamines is not the appropriate treatment for a hemolytic reaction. Stopping the transfusion and notifying the blood bank are more urgent actions.
At health fair, an oncology nurse answers questions about risk factors for various types of cancer. One person with a family history of colon cancer asks the nurse to identify risk factors for this type of cancer. The nurse should identify:
- A. Smoking
- B. Obesity
- C. Heavy alcohol consumption
- D. Saccharin consumption
Correct Answer: B
Rationale: The correct answer is B: Obesity. Obesity is a known risk factor for colon cancer as excess body fat, especially around the waist, can lead to inflammation and insulin resistance, increasing the likelihood of cancerous cell growth in the colon. Smoking (choice A) is more strongly associated with lung and other types of cancer, not specifically colon cancer. Heavy alcohol consumption (choice C) is linked to other types of cancer, such as liver and esophageal cancer, but not as strongly to colon cancer. Saccharin consumption (choice D) has not been definitively linked to an increased risk of colon cancer.
A client diagnosed with systemic lupus erythematosus (SLE) comes to the emergency department with severe back pain. She reports that she first felt pain after manually opening her garage door and that she is taking prednisone daily. When adverse effect of long-term corticosteroid therapy is most likely responsible for the pain?
- A. Hypertension
- B. Muscle wasting
- C. Osteoporosis
- D. Truncal obesity
Correct Answer: C
Rationale: The correct answer is C: Osteoporosis. Long-term corticosteroid therapy, such as prednisone, is known to cause bone loss and increase the risk of osteoporosis. Corticosteroids inhibit bone formation and increase bone resorption, leading to decreased bone density and increased fracture risk, which can manifest as severe back pain.
Incorrect choices:
A: Hypertension - Corticosteroids can cause fluid retention and sodium retention, leading to hypertension, but it is not typically associated with severe back pain.
B: Muscle wasting - Corticosteroids can lead to muscle weakness, but severe back pain is not typically related to muscle wasting.
D: Truncal obesity - Corticosteroids can cause weight gain, especially in the trunk area, but this is not directly responsible for severe back pain.
Several hours after returning from surgery, the nurse tells the patient that she is ordered to be ambulated. The patient asks, “Why?” Which of the following complications would the nurse correctly explain can be prevented by early postoperative ambulation?
- A. Increased peristalsis
- B. Coughing
- C. Pneumonia
- D. Wound healing A1 PASSERS TRAINING, RESEARCH, REVIEW & DEVELOPMENT COMPANY MEDICAL SURGICAL NURSING SET K
Correct Answer: C
Rationale: The correct answer is C: Pneumonia. Early postoperative ambulation helps prevent pneumonia by promoting lung expansion, increasing oxygenation, and preventing atelectasis. A: Increased peristalsis is unrelated to ambulation. B: Coughing is important for airway clearance but not directly related to ambulation. D: Wound healing is influenced by various factors, but ambulation primarily impacts respiratory function.
The nurse is developing a teaching plan for a client diagnosed with diabetes insipidus. The nurse should include information about which hormone lacking in clients with diabetes insipidus?
- A. antidiuretic hormone (ADH).
- B. follicle-stimulating hormone (FSH).
- C. thyroid-stimulating hormone (TSH).
- D. luteinizing hormone (LH).
Correct Answer: A
Rationale: The correct answer is A: antidiuretic hormone (ADH). In diabetes insipidus, there is a deficiency of ADH, which regulates water balance by reducing urine output. Without ADH, excessive urination and thirst occur. FSH, TSH, and LH are not related to water balance regulation. FSH and LH are involved in reproductive functions, while TSH regulates thyroid hormone production. Therefore, the nurse should focus on educating the client about the importance of ADH in managing diabetes insipidus.